Steyr Steyr Evo 10 maintenance

Hello,

The manual for EVO 10 recommends greasing the following:
o-ring at the compressed air cylinder
o-ring at the loading port
cocking lever

As for the o-rings, do you just apply the lube on the o-ring or do you remove it first from the thread/port, lube and put back?

And as fr the cocking lever, I assume I need to remove the grip and then what?
I'm also wondering why they recommend using a silicone grease for the cocking lever - I would assume it's metal to metal contact so a molybdenum grease would be appropriate; not that I'm going to argue with Steyr, just wondering.

Thanks!